PXIe-5632 Calibration Procedure - National ?· CALIBRATION PROCEDURE PXIe-5632 This document contains…

Download PXIe-5632 Calibration Procedure - National ?· CALIBRATION PROCEDURE PXIe-5632 This document contains…

Post on 01-Sep-2018

212 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

<ul><li><p>CALIBRATION PROCEDURE</p><p>PXIe-5632This document contains the verification and adjustment procedures for the PXIe-5632 VectorNetwork Analyzer.</p><p>Refer to ni.com/calibration for more information about calibration solutions.</p><p>ContentsRequired Software.....................................................................................................................2Related Documentation.............................................................................................................2Test Equipment..........................................................................................................................2Test Conditions..........................................................................................................................6Initial Setup............................................................................................................................... 7Test System Characterization....................................................................................................7</p><p>Zeroing and Calibrating the Power Sensor....................................................................... 7Performing User Calibration on the PXIe-5632....................................................................... 7</p><p>Automatically Calibrating Port One Reflection................................................................8Manually Calibrating Port One Reflection....................................................................... 9Manually Calibrating Transmission Frequency Response..............................................10</p><p>As-Found and As-Left Limits................................................................................................. 11Verification.............................................................................................................................. 11</p><p>Verifying Frequency Accuracy........................................................................................11Verifying Output Power Accuracy (+0 dBm Set Level Check)......................................13Verifying Source Maximum Leveled Power...................................................................15Verifying Source Harmonics...........................................................................................17Verifying Source Nonharmonic Spurious....................................................................... 20Verifying Trace Noise..................................................................................................... 22Verifying System Dynamic Range..................................................................................23Verifying Corrected Directivity (300 kHz to </p></li><li><p>Appendix C: Third Harmonic Test Frequency List.................................................................41Appendix D: RF Measurement Chart..................................................................................... 41Worldwide Support and Services............................................................................................ 44</p><p>Required SoftwareCalibrating the PXIe-5632 requires you to install the following software on the calibrationsystem: NI-VNA 2.0.1</p><p>You can download all required software from ni.com/downloads.</p><p>Related DocumentationFor additional information, refer to the following documents as you perform the calibrationprocedure: NI PXIe-5632 Getting Started Guide PXIe-5632 Specifications NI Vector Network Analyzers Help</p><p>Visit ni.com/manuals for the latest versions of these documents.</p><p>Test EquipmentThe following table lists the equipment NI recommends for the performance verification andadjustment procedures. If the recommended equipment is not available, select a substituteusing the minimum requirements listed in the table.</p><p>2 | ni.com | PXIe-5632 Calibration Procedure</p><p>http://www.ni.com/downloadshttp://www.ni.com/manuals</p></li><li><p>Table 1. Recommended Equipment for PXIe-5632 Calibration</p><p>Equipment RecommendedModel</p><p>Where Used Minimum Requirements</p><p> PXI Expresschassis</p><p>PXIe-1073 withintegrated MXI-Expresscontroller</p><p>All procedures Three adjacent, empty PXIExpress slots</p><p>Power meter AnritsuML2438A</p><p>Verifications: Output power</p><p>accuracy</p><p>Adjustments: Port 1 ALC Port 2 ALC LO level</p><p>Display resolution: 0.01 dB</p><p>Settling: 0.1%</p><p>Instrumentation accuracy:</p></li><li><p>Table 1. Recommended Equipment for PXIe-5632 Calibration (Continued)</p><p>Equipment RecommendedModel</p><p>Where Used Minimum Requirements</p><p> Spectrumanalyzer</p><p>AnritsuMS2720T-0720</p><p>Verifications: Frequency accuracy Source harmonics Source nonharmonic</p><p>spurious</p><p>Adjustments: Timebase</p><p>Frequency range: 300 kHz to20 GHz</p><p>DANL: -155 dBm</p><p>TOI: +22 dBm, typical</p><p>Amplitude accuracy:100 kHz to 13 GHz = 1.3 dB</p><p>Timebase aging: 1.0 ppm/10years</p><p>Frequency accuracy:0.3 ppm + aging</p><p>Precisioncoaxialcable (1.0 m,K-type)</p><p>NI 781611-01 Verifications: Frequency accuracy Source harmonics Source nonharmonic</p><p>spurious</p><p>Adjustments: Timebase</p><p>High-quality, (m)-to-(m) RFcable</p><p>K-typecalibrationdevice(open/short/load)</p><p>AnritsuOSLKF50(included inNI 781590-01)</p><p>Verifications: System dynamic</p><p>range</p><p>No substitute</p><p>K-typeairline</p><p>Anritsu SC7594(included inNI 781590-01)</p><p>Verifications: Corrected directivity</p><p>(5 GHz to 8.5 GHz) Corrected source</p><p>match(5 GHz to 8.5 GHz)</p><p>No substitute</p><p>4 | ni.com | PXIe-5632 Calibration Procedure</p></li><li><p>Table 1. Recommended Equipment for PXIe-5632 Calibration (Continued)</p><p>Equipment RecommendedModel</p><p>Where Used Minimum Requirements</p><p> K-type maleshort</p><p>Anritsu 23K50(included inNI 781590-01)</p><p>Verifications: Corrected source</p><p>match (300 MHz to16 dB</p><p>Torquewrench</p><p>NI 747832-01 All procedures Refer to Test Conditions fortorque wrench specifications.</p><p>PXIe-5632 Calibration Procedure | National Instruments | 5</p></li><li><p>Table 1. Recommended Equipment for PXIe-5632 Calibration (Continued)</p><p>Equipment RecommendedModel</p><p>Where Used Minimum Requirements</p><p> K-type thruline</p><p>NI 781607-01 Manually calibratingtransmission frequencyresponse</p><p>Verifications: Source maximum</p><p>leveled power Trace noise System dynamic</p><p>range</p><p>Return loss: &gt;16 dB</p><p>AutomaticVNAcalibrationkit</p><p>NI 782364-01 Automatically calibratingport one reflection</p><p>K-type, male-female, 70 MHzto 9 GHz</p><p>ManualVNAcalibrationkit</p><p>NI 781587-01 Manually calibrating portone reflection</p><p>K-type</p><p>Test ConditionsThe following setup and environmental conditions are required to ensure the PXIe-5632 meetspublished specifications. Keep cabling as short as possible. Long cables and wires act as antennas, picking up extra</p><p>noise that can affect measurements. Verify that all connections, including front panel connections and screws, are secure. Maintain an ambient temperature of 23 C 5 C. Keep relative humidity between 10% and 90%, noncondensing. Allow a warm-up time of at least 45 minutes after the chassis is powered on and NI-VNA</p><p>is loaded and recognizes the PXIe-5632. The warm-up time ensures that the PXIe-5632and test instrumentation are at a stable operating temperature.</p><p> In each verification procedure, insert a delay between configuring all instruments andacquiring the measurement. This delay may need to be adjusted depending on theinstruments used but should always be at least 1,000 ms for the first iteration, 1,000 mswhen the power level changes, and 100 ms for each other iteration.</p><p>6 | ni.com | PXIe-5632 Calibration Procedure</p></li><li><p> Ensure that the chassis fan speed is set to HIGH, that the fan filters, if present, are clean,and that the empty slots contain filler panels. For more information, refer to the MaintainForced-Air Cooling Note to Users document available at ni.com/manuals.</p><p> Use an appropriate torque wrench or torque screwdriver and SMA driver bit to tighten allmodule RF connectors (SMA or 3.5 mm). NI recommends use of 1 N m (9 lb in.).</p><p> Use a 3.5 mm torque wrench (8 lb in., NI 781615-01 or equivalent) to tighten 3.5 mm or2.92 mm (K) connections without an SMA connector.</p><p>Initial SetupRefer to the PXIe-5632 Getting Started Guide for information about how to install thesoftware and the hardware and how to configure the device in Measurement &amp; AutomationExplorer (MAX).</p><p>Test System CharacterizationThe following procedures characterize the test equipment used during verification andadjustment.</p><p>Caution The connectors on the device under test (DUT) and test equipment arefragile. Perform the steps in these procedures with great care to prevent damagingany DUTs or test equipment.</p><p>Zeroing and Calibrating the Power Sensor1. Ensure that the power sensor is not connected to any signals.2. Zero and calibrate the power sensor using the built-in functions in the power meter,</p><p>according to the power meter documentation.</p><p>Performing User Calibration on the PXIe-5632Allow a 45 minute warm-up period before you begin a user calibration.</p><p>The PXIe-5632 includes precise internal circuits and references used during user calibration toadjust for any errors caused by short-term fluctuations in the environment.</p><p>Note You must perform different user calibrations before verifying certainPXIe-5632 specifications.</p><p>The following verification procedures require you to perform either an automatic or manualport one reflection user calibration or a transmission frequency response user calibration priorto the completion of the verification procedure: System Dynamic Range Corrected Directivity (300 MHz to </p></li><li><p> Corrected Directivity (5 GHz to 8.5 GHz) Corrected Source Match (5 GHz to 8.5 GHz)</p><p>Automatically Calibrating Port One ReflectionComplete the following procedure to automatically calibrate port one reflection using theNI-VNA Soft Front Panel (SFP).</p><p>Note Specific values are not provided in the following procedure, because valuesare defined by the particular test being performed.</p><p>1. Connect the AutoCal module power supply to an appropriate AC power source.</p><p>The green Power LED on the AutoCal module should light.2. Wait for the internal heating element inside the AutoCal module to stabilize the internal</p><p>temperature of the module.</p><p>The blue Operate LED on the AutoCal module lights when the module is warmed up andready to use.</p><p>3. Connect the serial cable between the AutoCal module and the PXI Express embeddedcontroller serial port or external computer if using an MXI-Express controller.</p><p>4. Launch the NI-VNA SFP.</p><p>The Measuring State indicator at the bottom of the Display Window shows UNCORR,which indicates that the PXIe-5632 is initially uncalibrated and is not applying correctionfactors.</p><p>5. Load the AutoCal correction factors, if not already loaded, by completing the followingsteps:a) Select Calibration from the menu.b) Select CalKitAutoCal CharacterizationLoad Charac. File from the softkey</p><p>menu.c) Ensure the USB flash memory drive that came with the AutoCal module is plugged</p><p>into the PXI Express controller or external computer if you are using an MXI-Express controller.</p><p>d) Select your AutoCal module characterization file from the USB flash memory drivein the Open dialog box.</p><p>The filename format is serialnumber.ACD, where serialnumber is the serialnumber printed on the bottom of the AutoCal module.</p><p>e) Click OK to exit the dialog box.6. Specify the AutoCal setup by completing the following steps:</p><p>a) Select Calibration from the menu.b) Select CalibrateAutoCal from the softkey menu, and enter the Comm Port number</p><p>where the AutoCal is connected.c) Select 1-Port CalModify Cal Setup from the softkey menu.d) Ensure both Port 1 and Port 2 are selected and that the left port is selected for both</p><p>ports from the Modify 1-Port AutoCal Setup dialog box.e) Click OK to exit the dialog box.</p><p>8 | ni.com | PXIe-5632 Calibration Procedure</p></li><li><p>f) Connect Port 1 to the left port on the AutoCal module.g) Select Begin Cal from the softkey menu.</p><p>Calibration is complete when the NI-VNA SFP shows a Measuring State of CORR, whichindicates that the module is applying correction factors. With no connections to the ports, theS11 and S22 amplitude and phase responses should be flat.</p><p>To store the calibration data, select FileSave Setup to save the sweep settings and currentcalibration correction factors to the disk for recall later. To recall the settings later, select FileRecall Setup.</p><p>Manually Calibrating Port One ReflectionComplete the following procedure to manually calibrate port one reflection using the NI-VNASoft Front Panel (SFP).</p><p>Note Specific values are not provided in the following procedure, because valuesare defined by the particular test being performed.</p><p>1. Launch the NI-VNA SFP.</p><p>The Measuring State indicator at the bottom of the Display Window shows UNCORR,which indicates that the PXIe-5632 is initially uncalibrated and is not applying correctionfactors.</p><p>2. Specify the manual calibration setup by completing the following steps:a) Select Calibration from the menu.b) Select CalibrateManual Cal1 Port CalModify Cal SetupEdit Cal Params</p><p>from the softkey menu.c) Select Test Port 1 and Test Port 2 for calibration.d) Select Broadband Load as the Load Type in each of the Port Setup dialog boxes.e) Specify the connector type that is present on the manual calibration standards in the</p><p>DUT Connector control for each port.f) Click OK to close the dialog box.</p><p>3. Click the Back button at the bottom of the softkey menu.4. Select Port 1 Reflective Devices from the softkey menu.5. Attach the open manual calibration standard to the PXIe-5632 PORT 1 connector.6. Select Open from the softkey menu.7. Attach the short manual calibration standard to the PXIe-5632 PORT 1 connector.8. Select Short from the softkey menu.9. Attach the load manual calibration standard to the PXIe-5632 PORT 1 connector.10. Select Load from the softkey menu.11. Click the Back button at the bottom of the softkey menu.12. Select Port 2 Reflective Devices from the softkey menu.13. Repeat steps 4 through 10 to complete calibration for Port 2 standards.14. Click the Back button at the bottom of the softkey menu.</p><p>PXIe-5632 Calibration Procedure | National Instruments | 9</p></li><li><p>15. Click the Done in the softkey menu.</p><p>Calibration is complete when the NI-VNA SFP shows a Measuring State of CORR, whichindicates that the module is applying correction factors. With no connections to the ports, theS11 and S22 amplitude and phase responses should be flat.</p><p>To store the calibration data, select FileSave Setup to save the sweep settings and currentcalibration correction factors to the disk for recall later. To recall the settings later, select FileRecall Setup.</p><p>Manually Calibrating Transmission FrequencyResponseComplete the following procedure to manually calibrate transmission frequency responseusing the NI-VNA Soft Front Panel (SFP).</p><p>Note Specific values are not provided in the following procedure, because valuesare defined by the particular test being performed.</p><p>1. Launch the NI-VNA SFP.</p><p>The Measuring State indicator at the bottom of the Display Window shows UNCORR,which indicates that the PXIe-5632 is initially uncalibrated and is not applying correctionfactors.</p><p>2. Specify the manual calibration setup by completing the following steps:a) Select Calibration from the menu.b) Select CalibrateManual CalTransmission Freq. ResponseModify Cal Setup</p><p>Edit Cal Params from...</p></li></ul>

Recommended

View more >